How Many Observations Are There for Each Case in a T

question 14

Multiple Choice

How many observations are there for each case in a t test for dependent samples?

• A) One
• B) Two
• C) Three
• D) Four

---

Definitions:

Gram-negative

Refers to bacteria that have a specific cell wall structure which does not retain the crystal violet stain used in Gram's method of staining; often associated with higher resistance to antibiotics.

Lipids

A broad class of biomolecules that are insoluble in water and include fats, oils, and cholesterol, playing key roles in energy storage and cell structure.

Peptidoglycans

A complex polymer of amino sugars and amino acids that forms a mesh-like layer outside the plasma membrane of most bacteria, providing structural support and shape.

Koch's Postulates

A set of criteria for establishing a causative relationship between a microbe and a disease, including isolation, reproduction of symptoms, and re-isolation of the microbe.